Ludhiana in top 50 most polluted cities of the worldIn a worrying sign, Ludhiana has featured in the top 50 most polluted cities of the world in 2021, a survey by IQAir, a Swiss-based air quality technology company, has revealed. The city has seen a big jump of more than 100 ranks as compared to the previous year.
Ludhiana in top 50 most polluted cities of the world
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